 |
Search Sci.Electronics.Basics |
|
|
|
|
|
|
 |
|
|
Sci.Electronics.Basics -> coil winding sensor
There are 15 messages in this thread.
You are currently looking at messages 1 to 15.
|
Author: lerameurDate: 14:43 17-06-08
|
|
hello,
I want to make a coil winding machine, I would like to implement a
sensor so I can count the velocity of the wire I am coiling so I can
accurately count the length of the wire,
is there any type of sensors out there that can do that.
thanks
k
|
|
|
|
Author: Tim WescottDate: 15:05 17-06-08
|
|
lerameur wrote:
> hello,
>
> I want to make a coil winding machine, I would like to implement a
> sensor so I can count the velocity of the wire I am coiling so I can
> accurately count the length of the wire,
> is there any type of sensors out there that can do that.
> thanks
> k
Search on "optical interrupter".
To count turns you attach a wheel to your coil spindle that has a slot
(or slots) in its edge. Then you shine a light through the path of the
slots, and receive the light with a photo transistor. Then you count
the number of times the light flashes, divide by the number of slots,
and you have a turns count.
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" gives you just what it says.
See details at http://www.wescottdesign.com/actfes/actfes.html
|
|
|
|
Author: John FieldsDate: 15:34 17-06-08
|
|
On Tue, 17 Jun 2008 12:05:29 -0700, Tim Wescott <tim@seemywebsite.com>
wrote:
>lerameur wrote:
>> hello,
>>
>> I want to make a coil winding machine, I would like to implement a
>> sensor so I can count the velocity of the wire I am coiling so I can
>> accurately count the length of the wire,
>> is there any type of sensors out there that can do that.
>> thanks
>> k
>Search on "optical interrupter".
>
>To count turns you attach a wheel to your coil spindle that has a slot
>(or slots) in its edge. Then you shine a light through the path of the
>slots, and receive the light with a photo transistor. Then you count
>the number of times the light flashes, divide by the number of slots,
>and you have a turns count.
---
But that only gives him turns, not length of wire, and if he's winding
more than one layer...
To get length he could run the wire over a slotted idler.
JF
|
|
|
|
Author: lerameurDate: 16:21 17-06-08
|
|
On Jun 17, 3:34 pm, John Fields <jfie...@austininstruments.com> wrote:
> On Tue, 17 Jun 2008 12:05:29 -0700, Tim Wescott <t...@seemywebsite.com>
> wrote:
>
>
>
> >lerameur wrote:
> >> hello,
>
> >> I want to make a coil winding machine, I would like to implement a
> >> sensor so I can count the velocity of the wire I am coiling so I can
> >> accurately count the length of the wire,
> >> is there any type of sensors out there that can do that.
> >> thanks
> >> k
> >Search on "optical interrupter".
>
> >To count turns you attach a wheel to your coil spindle that has a slot
> >(or slots) in its edge. Then you shine a light through the path of the
> >slots, and receive the light with a photo transistor. Then you count
> >the number of times the light flashes, divide by the number of slots,
> >and you have a turns count.
>
> ---
> But that only gives him turns, not length of wire, and if he's winding
> more than one layer...
>
> To get length he could run the wire over a slotted idler.
>
> JF
the problem is that the sensor sees the wire, but this is thin wire
and I dont think the sensor will actually the wire moving.
I think by adding a control wheel with rubber around it while adding
a sensor to that wheel could work good enough.
k
|
|
|
|
Author: christofireDate: 16:45 17-06-08
|
|
"lerameur" <lerameur@yahoo.com> wrote in message
news:d3a21af4-063e-4756-a08b-a2062bd57dad@w7g2000hsa.googlegroups.com...
> On Jun 17, 3:34 pm, John Fields <jfie...@austininstruments.com> wrote:
>> On Tue, 17 Jun 2008 12:05:29 -0700, Tim Wescott <t...@seemywebsite.com>
>> wrote:
>>
>>
>>
>> >lerameur wrote:
>> >> hello,
>>
>> >> I want to make a coil winding machine, I would like to implement a
>> >> sensor so I can count the velocity of the wire I am coiling so I can
>> >> accurately count the length of the wire,
>> >> is there any type of sensors out there that can do that.
>> >> thanks
>> >> k
>> >Search on "optical interrupter".
>>
>> >To count turns you attach a wheel to your coil spindle that has a slot
>> >(or slots) in its edge. Then you shine a light through the path of the
>> >slots, and receive the light with a photo transistor. Then you count
>> >the number of times the light flashes, divide by the number of slots,
>> >and you have a turns count.
>>
>> ---
>> But that only gives him turns, not length of wire, and if he's winding
>> more than one layer...
>>
>> To get length he could run the wire over a slotted idler.
>>
>> JF
>
> the problem is that the sensor sees the wire, but this is thin wire
> and I dont think the sensor will actually the wire moving.
> I think by adding a control wheel with rubber around it while adding
> a sensor to that wheel could work good enough.
>
> k
You could measure the added weight of the bobbin after winding and, with
reference to weight-per-metre data from the wire manufacturer, calculate the
length. Seems the simplest way to me.
Chris
|
|
|
|
Author: John FieldsDate: 17:09 17-06-08
|
|
On Tue, 17 Jun 2008 21:45:51 +0100, "christofire"
<christofire@btinternet.com> wrote:
>"lerameur" <lerameur@yahoo.com> wrote in message
>news:d3a21af4-063e-4756-a08b-a2062bd57dad@w7g2000hsa.googlegroups.com...
>> On Jun 17, 3:34 pm, John Fields <jfie...@austininstruments.com> wrote:
>>> On Tue, 17 Jun 2008 12:05:29 -0700, Tim Wescott
<t...@seemywebsite.com>
>>> wrote:
>>>
>>>
>>>
>>> >lerameur wrote:
>>> >> hello,
>>>
>>> >> I want to make a coil winding machine, I would like to implement a
>>> >> sensor so I can count the velocity of the wire I am coiling so I
can
>>> >> accurately count the length of the wire,
>>> >> is there any type of sensors out there that can do that.
>>> >> thanks
>>> >> k
>>> >Search on "optical interrupter".
>>>
>>> >To count turns you attach a wheel to your coil spindle that has a slot
>>> >(or slots) in its edge. Then you shine a light through the path of the
>>> >slots, and receive the light with a photo transistor. Then you count
>>> >the number of times the light flashes, divide by the number of slots,
>>> >and you have a turns count.
>>>
>>> ---
>>> But that only gives him turns, not length of wire, and if he's winding
>>> more than one layer...
>>>
>>> To get length he could run the wire over a slotted idler.
>>>
>>> JF
>>
>> the problem is that the sensor sees the wire, but this is thin wire
>> and I dont think the sensor will actually the wire moving.
>> I think by adding a control wheel with rubber around it while adding
>> a sensor to that wheel could work good enough.
>>
>> k
>
>You could measure the added weight of the bobbin after winding and, with
>reference to weight-per-metre data from the wire manufacturer, calculate the
>length. Seems the simplest way to me.
---
It would be nice to know how much wire was going on the bobbin (or
whatever) as it was being wound, otherwise how would you know when you
were finished?
JF
|
|
|
|
Author: John FieldsDate: 17:10 17-06-08
|
|
On Tue, 17 Jun 2008 13:21:26 -0700 (PDT), lerameur
<lerameur@yahoo.com> wrote:
>On Jun 17, 3:34 pm, John Fields <jfie...@austininstruments.com> wrote:
>> On Tue, 17 Jun 2008 12:05:29 -0700, Tim Wescott <t...@seemywebsite.com>
>> wrote:
>>
>>
>>
>> >lerameur wrote:
>> >> hello,
>>
>> >> I want to make a coil winding machine, I would like to implement a
>> >> sensor so I can count the velocity of the wire I am coiling so I can
>> >> accurately count the length of the wire,
>> >> is there any type of sensors out there that can do that.
>> >> thanks
>> >> k
>> >Search on "optical interrupter".
>>
>> >To count turns you attach a wheel to your coil spindle that has a slot
>> >(or slots) in its edge. Then you shine a light through the path of the
>> >slots, and receive the light with a photo transistor. Then you count
>> >the number of times the light flashes, divide by the number of slots,
>> >and you have a turns count.
>>
>> ---
>> But that only gives him turns, not length of wire, and if he's winding
>> more than one layer...
>>
>> To get length he could run the wire over a slotted idler.
>>
>> JF
>
>the problem is that the sensor sees the wire, but this is thin wire
>and I dont think the sensor will actually the wire moving.
>I think by adding a control wheel with rubber around it while adding
>a sensor to that wheel could work good enough.
---
You've just described an idler.
JF
|
|
|
|
Author: lerameurDate: 17:37 17-06-08
|
|
On Jun 17, 5:10 pm, John Fields <jfie...@austininstruments.com> wrote:
> On Tue, 17 Jun 2008 13:21:26 -0700 (PDT), lerameur
>
>
>
> <leram...@yahoo.com> wrote:
> >On Jun 17, 3:34 pm, John Fields <jfie...@austininstruments.com> wrote:
> >> On Tue, 17 Jun 2008 12:05:29 -0700, Tim Wescott
<t...@seemywebsite.com>
> >> wrote:
>
> >> >lerameur wrote:
> >> >> hello,
>
> >> >> I want to make a coil winding machine, I would like to implement
a
> >> >> sensor so I can count the velocity of the wire I am coiling so I
can
> >> >> accurately count the length of the wire,
> >> >> is there any type of sensors out there that can do that.
> >> >> thanks
> >> >> k
> >> >Search on "optical interrupter".
>
> >> >To count turns you attach a wheel to your coil spindle that has a slot
> >> >(or slots) in its edge. Then you shine a light through the path of
the
> >> >slots, and receive the light with a photo transistor. Then you count
> >> >the number of times the light flashes, divide by the number of slots,
> >> >and you have a turns count.
>
> >> ---
> >> But that only gives him turns, not length of wire, and if he's winding
> >> more than one layer...
>
> >> To get length he could run the wire over a slotted idler.
>
> >> JF
>
> >the problem is that the sensor sees the wire, but this is thin wire
> >and I dont think the sensor will actually the wire moving.
> >I think by adding a control wheel with rubber around it while adding
> >a sensor to that wheel could work good enough.
>
> ---
> You've just described an idler.
>
> JF
I need about 1 pound, which is roughly 2100 feet.
k
|
|
|
|
Author: Randy DayDate: 18:11 17-06-08
|
|
lerameur wrote:
>
> On Jun 17, 5:10 pm, John Fields <jfie...@austininstruments.com> wrote:
> > On Tue, 17 Jun 2008 13:21:26 -0700 (PDT), lerameur
> >
> >
> >
> > <leram...@yahoo.com> wrote:
> > >On Jun 17, 3:34 pm, John Fields <jfie...@austininstruments.com>
wrote:
> > >> On Tue, 17 Jun 2008 12:05:29 -0700, Tim Wescott
<t...@seemywebsite.com>
> > >> wrote:
> >
> > >> >lerameur wrote:
> > >> >> hello,
> >
> > >> >> I want to make a coil winding machine, I would like to
implement a
> > >> >> sensor so I can count the velocity of the wire I am coiling
so I can
> > >> >> accurately count the length of the wire,
> > >> >> is there any type of sensors out there that can do that.
> > >> >> thanks
> > >> >> k
> > >> >Search on "optical interrupter".
> >
> > >> >To count turns you attach a wheel to your coil spindle that has a
slot
> > >> >(or slots) in its edge. Then you shine a light through the path
of the
> > >> >slots, and receive the light with a photo transistor. Then you
count
> > >> >the number of times the light flashes, divide by the number of
slots,
> > >> >and you have a turns count.
> >
> > >> ---
> > >> But that only gives him turns, not length of wire, and if he's
winding
> > >> more than one layer...
> >
> > >> To get length he could run the wire over a slotted idler.
> >
> > >> JF
> >
> > >the problem is that the sensor sees the wire, but this is thin wire
> > >and I dont think the sensor will actually the wire moving.
> > >I think by adding a control wheel with rubber around it while adding
> > >a sensor to that wheel could work good enough.
> >
> > ---
> > You've just described an idler.
> >
> > JF
>
> I need about 1 pound, which is roughly 2100 feet.
>
> k
Disassemble an old mechanical mouse, attach a shaft
from one axis roller to your control wheel. Presto!
Instant pulse counter.
Forward *and* reverse. Straight into your computer.
|
|
|
|
Author: John FieldsDate: 09:31 18-06-08
|
|
On Tue, 17 Jun 2008 14:37:39 -0700 (PDT), lerameur
<lerameur@yahoo.com> wrote:
>On Jun 17, 5:10 pm, John Fields <jfie...@austininstruments.com> wrote:
>> On Tue, 17 Jun 2008 13:21:26 -0700 (PDT), lerameur
>>
>>
>>
>> <leram...@yahoo.com> wrote:
>> >On Jun 17, 3:34 pm, John Fields <jfie...@austininstruments.com>
wrote:
>> >> On Tue, 17 Jun 2008 12:05:29 -0700, Tim Wescott
<t...@seemywebsite.com>
>> >> wrote:
>>
>> >> >lerameur wrote:
>> >> >> hello,
>>
>> >> >> I want to make a coil winding machine, I would like to
implement a
>> >> >> sensor so I can count the velocity of the wire I am coiling
so I can
>> >> >> accurately count the length of the wire,
>> >> >> is there any type of sensors out there that can do that.
>> >> >> thanks
>> >> >> k
>> >> >Search on "optical interrupter".
>>
>> >> >To count turns you attach a wheel to your coil spindle that has a
slot
>> >> >(or slots) in its edge. Then you shine a light through the path
of the
>> >> >slots, and receive the light with a photo transistor. Then you
count
>> >> >the number of times the light flashes, divide by the number of
slots,
>> >> >and you have a turns count.
>>
>> >> ---
>> >> But that only gives him turns, not length of wire, and if he's winding
>> >> more than one layer...
>>
>> >> To get length he could run the wire over a slotted idler.
>>
>> >> JF
>>
>> >the problem is that the sensor sees the wire, but this is thin wire
>> >and I dont think the sensor will actually the wire moving.
>> >I think by adding a control wheel with rubber around it while adding
>> >a sensor to that wheel could work good enough.
>>
>> ---
>> You've just described an idler.
>>
>> JF
>
>I need about 1 pound, which is roughly 2100 feet.
>
---
And your point is...?
JF
|
|
|
|
Author: christofireDate: 13:47 18-06-08
|
|
"John Fields" <jfields@austininstruments.com> wrote in message
news:er9g549fjpbksh8m80ju2p81bpkevkasuj@4ax.com...
> On Tue, 17 Jun 2008 21:45:51 +0100, "christofire"
> <christofire@btinternet.com> wrote:
>
-- snip --
>
> ---
> It would be nice to know how much wire was going on the bobbin (or
> whatever) as it was being wound, otherwise how would you know when you
> were finished?
>
> JF
By achievement of the required number of turns?
Perhaps I've misunderstood - maybe this is about coil winding of resistors
not inductors or transformers!
Chris
|
|
|
|
Author: John FieldsDate: 14:28 18-06-08
|
|
On Wed, 18 Jun 2008 18:47:38 +0100, "christofire"
<christofire@btinternet.com> wrote:
>
>"John Fields" <jfields@austininstruments.com> wrote in message
>news:er9g549fjpbksh8m80ju2p81bpkevkasuj@4ax.com...
>> On Tue, 17 Jun 2008 21:45:51 +0100, "christofire"
>> <christofire@btinternet.com> wrote:
>>
>-- snip --
>>
>> ---
>> It would be nice to know how much wire was going on the bobbin (or
>> whatever) as it was being wound, otherwise how would you know when you
>> were finished?
>>
>> JF
>
>
>By achievement of the required number of turns?
---
Perhaps, but all the OP has stated is that he wants to measure the
_length_ of wire used to wind a coil (not the number of turns) and
that one pound of the wire is about 2100 feet long.
---
>Perhaps I've misunderstood - maybe this is about coil winding of resistors
>not inductors or transformers!
---
I'm guessing that it's a solenoid of some kind, but unless the OP
tells us, who really knows?
JF
|
|
|
|
Author: lerameurDate: 16:22 18-06-08
|
|
On Jun 18, 2:28 pm, John Fields <jfie...@austininstruments.com> wrote:
> On Wed, 18 Jun 2008 18:47:38 +0100, "christofire"
>
>
>
> <christof...@btinternet.com> wrote:
>
> >"John Fields" <jfie...@austininstruments.com> wrote in message
> >news:er9g549fjpbksh8m80ju2p81bpkevkasuj@4ax.com...
> >> On Tue, 17 Jun 2008 21:45:51 +0100, "christofire"
> >> <christof...@btinternet.com> wrote:
>
> >-- snip --
>
> >> ---
> >> It would be nice to know how much wire was going on the bobbin (or
> >> whatever) as it was being wound, otherwise how would you know when you
> >> were finished?
>
> >> JF
>
> >By achievement of the required number of turns?
>
> ---
> Perhaps, but all the OP has stated is that he wants to measure the
> _length_ of wire used to wind a coil (not the number of turns) and
> that one pound of the wire is about 2100 feet long.
> ---
>
> >Perhaps I've misunderstood - maybe this is about coil winding of resistors
> >not inductors or transformers!
>
> ---
> I'm guessing that it's a solenoid of some kind, but unless the OP
> tells us, who really knows?
>
> JF
nope, making an electro magnet.
I dont think I will pursue with the project as is though.
or at least leave it for a while.
k
|
|
|
|
Author: lerameurDate: 16:55 18-06-08
|
|
On Jun 18, 2:28 pm, John Fields <jfie...@austininstruments.com> wrote:
> On Wed, 18 Jun 2008 18:47:38 +0100, "christofire"
>
>
>
> <christof...@btinternet.com> wrote:
>
> >"John Fields" <jfie...@austininstruments.com> wrote in message
> >news:er9g549fjpbksh8m80ju2p81bpkevkasuj@4ax.com...
> >> On Tue, 17 Jun 2008 21:45:51 +0100, "christofire"
> >> <christof...@btinternet.com> wrote:
>
> >-- snip --
>
> >> ---
> >> It would be nice to know how much wire was going on the bobbin (or
> >> whatever) as it was being wound, otherwise how would you know when you
> >> were finished?
>
> >> JF
>
> >By achievement of the required number of turns?
>
> ---
> Perhaps, but all the OP has stated is that he wants to measure the
> _length_ of wire used to wind a coil (not the number of turns) and
> that one pound of the wire is about 2100 feet long.
> ---
>
> >Perhaps I've misunderstood - maybe this is about coil winding of resistors
> >not inductors or transformers!
>
> ---
> I'm guessing that it's a solenoid of some kind, but unless the OP
> tells us, who really knows?
>
> JF
nope, making an electro magnet.
I dont think I will pursue with the project as is though.
or at least leave it for a while.
k
|
|
|
|
Author: Rich GriseDate: 16:04 19-06-08
|
|
On Tue, 17 Jun 2008 11:43:51 -0700, lerameur wrote:
>
> I want to make a coil winding machine, I would like to implement a sensor
> so I can count the velocity of the wire I am coiling so I can accurately
> count the length of the wire, is there any type of sensors out there that
> can do that. thanks
>
Why 'velocity'? Why not just a wheel and counter?
Good Luck!
Rich
|
|
|
|
1 |
|
|
|
|
Contact | Electronic Portal
|
|
|
